body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  margin: 0;
  padding: 20px;
  background-color: #f5f5f5;
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  background: white;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

h1 {
  color: #333;
  margin-bottom: 30px;
  border-bottom: 3px solid #007acc;
  padding-bottom: 10px;
}

.test-section {
  margin-bottom: 30px;
  padding: 20px;
  background: #f8f9fa;
  border-radius: 8px;
  border-left: 4px solid #007acc;
}

.test-uris {
  background: #fff;
  padding: 15px;
  border-radius: 5px;
  border: 1px solid #ddd;
  margin: 15px 0;
}

.at-uri {
  font-family: 'Monaco', 'Consolas', monospace;
  background: #f4f4f4;
  padding: 8px 12px;
  border-radius: 4px;
  margin: 10px 0;
  display: block;
  word-break: break-all;
  cursor: pointer;
  transition: background-color 0.2s;
}

.at-uri:hover {
  background: #e8e8e8;
}

.instructions {
  background: #e8f4f8;
  padding: 15px;
  border-radius: 5px;
  margin: 15px 0;
}

.instructions ol {
  margin: 10px 0;
  padding-left: 20px;
}

.back-link {
  display: inline-block;
  margin-top: 20px;
  color: #007acc;
  text-decoration: none;
  font-weight: bold;
}

.back-link:hover {
  text-decoration: underline;
}

/* AT Browser Modal Styles */
.at-uri-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.at-uri-modal-content {
  background-color: white;
  border-radius: 8px;
  max-width: 800px;
  max-height: 600px;
  width: 90%;
  height: 80%;
  overflow: auto;
  position: relative;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.at-uri-modal-close {
  position: absolute;
  top: 10px;
  right: 10px;
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  z-index: 1001;
  padding: 5px 10px;
}

/* AT URI Link Styles */
[data-at-uri] {
  color: #1976d2;
  cursor: pointer;
  text-decoration: underline;
}

[data-at-uri]:hover {
  color: #1565c0;
}